Three Body Abrasive Wear Characteristics of Cast Medium Carbon High Boron Alloy Steels

LI Ri-liang; CEN Qi-hong; JIANG Ye-hua; LI Zu-lai

Materials and Mechanical Engineering > 2013 > 37(6): 63-67.

LI Ri-liang, CEN Qi-hong, JIANG Ye-hua, LI Zu-lai. Three Body Abrasive Wear Characteristics of Cast Medium Carbon High Boron Alloy Steels[J]. Materials and Mechanical Engineering, 2013, 37(6): 63-67.

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Three Body Abrasive Wear Characteristics of Cast Medium Carbon High Boron Alloy Steels

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Received Date: February 24, 2013

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Abstract

The microstructure, performance and three body abrasive wear characteristics of the cast medium carbon high boron steels were studed by optical microscopy, scanning electron microscopy (SEM) and self-made three body abrasive wear tester. The results show that when the boron content increased, volume fraction of hard-phas, hardness and wear resistance of the test steel increased, but impact toughness reduced. The increase of hard-phase quantity and size was good to resist abrasive cutting and furrow deformation. The wear of matrix was mainly attributed to micro-cutting and plastic deformation, and the hard-phase showed fracture wear mechanism. Small wear rate was given in low load as a lot of deformed matrix cumulated, but fracture of the boron carbon compounds accelerated in high load leading to the rapid increase of wear rate.
- three-body abrasive wear,
- high boron alloy,
- boron carbon compound,
- wear mechanism

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